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using System;
using System.Collections;
using System.ComponentModel;
using AppKit;
using CoreAnimation;
using CoreGraphics;
using CoreImage;
using Xamarin.PropertyEditing.Drawing;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Mac
{
internal class ColorPopUpButton : NSPopUpButton
{
public NSPopover Popover { get; set; }
public ColorPopUpButton () : base ()
{
}
public ColorPopUpButton (CGRect frame) : base (frame, true)
{
}
public ColorPopUpButton (IntPtr handle) : base (handle)
{
}
public override void MouseDown (NSEvent theEvent) {
if (Popover != null)
Popover.Show (new CGRect (20, this.Frame.Height/2 - 2.5, 5, 5), this, NSRectEdge.MinYEdge);
}
}
internal class BrushEditorControl : PropertyEditorControl
{
public BrushEditorControl ()
{
base.TranslatesAutoresizingMaskIntoConstraints = false;
RowHeight = 230f;
this.colorEditor = new BrushTabViewController ();
this.popover = new NSPopover ();
popover.Behavior = NSPopoverBehavior.Transient;
popover.ContentViewController = new BrushTabViewController ();
this.popUpButton = new ColorPopUpButton {
TranslatesAutoresizingMaskIntoConstraints = false,
ControlSize = NSControlSize.Small,
Font = NSFont.FromFontName (DefaultFontName, DefaultFontSize),
Popover = this.popover
};
popupButtonList = new NSMenu ();
popUpButton.Menu = popupButtonList;
UpdateTheme ();
}
internal new BrushPropertyViewModel ViewModel
{
get { return (BrushPropertyViewModel)base.ViewModel; }
set { base.ViewModel = value; }
}
readonly NSPopUpButton popUpButton;
readonly BrushTabViewController colorEditor;
readonly NSPopover popover;
NSMenu popupButtonList;
readonly CommonBrushLayer previewLayer = new CommonBrushLayer {
Frame = new CGRect (0, 0, 30, 10)
};
bool dataPopulated;
public override NSView FirstKeyView => this.popUpButton;
public override NSView LastKeyView => this.popUpButton;
protected override void HandleErrorsChanged (object sender, DataErrorsChangedEventArgs e)
{
}
protected override void SetEnabled ()
{
}
protected override void UpdateAccessibilityValues ()
{
}
protected override void UpdateErrorsDisplayed (IEnumerable errors)
{
}
string GetTitle ()
{
var title = "Unknown";
switch (ViewModel.Value) {
case CommonSolidBrush solid:
title = solid.Color.ToString ();
break;
case CommonGradientBrush gradient:
title = "Gradient";
break;
default:
if (ViewModel.Value == null)
title = "null";
break;
}
return ViewModel.Resource == null ? title : $"{title} - (Resource: {ViewModel?.Resource?.Name})";
}
protected override void UpdateValue ()
{
this.colorEditor.ViewModel = ViewModel;
var controller = this.popover.ContentViewController as BrushTabViewController;
controller.ViewModel = ViewModel;
if (ViewModel.Solid != null) {
var title = GetTitle ();
if (popupButtonList.Count == 0)
popupButtonList.AddItem (new NSMenuItem ());
previewLayer.Brush = ViewModel.Value;
var item = popupButtonList.ItemAt (0);
if (item.Title != title) {
item.Title = title;
item.Image = previewLayer.RenderPreview ();
}
}
}
protected override void OnViewModelChanged (PropertyViewModel oldModel)
{
if (!dataPopulated) {
this.DoConstraints (new[] {
popUpButton.ConstraintTo (this, (pub, c) => pub.Width == c.Width - 34),
popUpButton.ConstraintTo (this, (pub, c) => pub.Height == DefaultControlHeight + 1),
popUpButton.ConstraintTo (this, (pub, c) => pub.Left == pub.Left + 4),
popUpButton.ConstraintTo (this, (pub, c) => pub.Top == pub.Top + 0),
});
AddSubview (this.popUpButton);
AddSubview (this.colorEditor.View);
}
UpdateValue ();
dataPopulated = true;
}
}
}
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